JSON sent:
{"app_id":"478ce6aa-ede7-4786-80f7-8762f7bec09a","include_external_user_ids":["d1b47b65-d7d5-4bb0-a49f-cc5ccd81d0fd"],"data":{"foo":"bar"},"contents":{"en":"Aten\u00e7\u00e3o! Vistoria cadastrada:  Feita pelo associado: Tiago Oliveira"},"large_icon":"ic_launcher2.png","small_icon":"ic_launcher2.png","icon":"ic_launcher2.png","android_channel_id":"2806b6f7-2fba-4f9f-a652-345894a46d2d"}

JSON received:
{"allresponses":"{\"errors\":[\"Could not find android_channel_id\"]}"}